The Syrian government has protested against the United Nations about an air strike by the US-led coalition against the Islamic State, which according to her killed 26 civilians in Hajin in the eastern region of Deir el-Zour, the state media said on Saturday.
Asked about reports of air strikes in that area on Friday, the coalition spokesman said it had "successfully hit and destroyed an ISIS (Islamic State) observation post and excavation area in Hajin, at that time no civilians."
The Syrian Observatory for Human Rights said that 41 people, including 17 children, were killed in two waves of coalition air strikes on Friday in Hajin and the nearby village of al-Shafa on the eastern bank of the Euphrates River.
It said that the victims were mainly Iraqi and family members of warriors of the Islamic State.
The coalition supports the Kurdish-led Syrian Democratic forces in an attempt to defeat the Islamic State in the area it controls near the border with Iraq.
Syrian state media said the foreign ministry had written the secretary-general of the United States and the president of the security council on "the crime". in Hajin.
Colonel Sean Ryan, the coalition spokesperson, said: "Our team is investigating all attacks to determine the credibility of any civil accident claims they see in open media."